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Mesenchymal Bladder Neoplasms
Amir A. Borhani, MD
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        TERMINOLOGY

        • Definitions

          • Primary neoplasms of urinary bladder derived from nonepithelial elements
            • Leiomyoma, paraganglioma, fibroma, hemangioma, neurofibroma, plasmacytoma
            • Malignant counterparts (´╗┐sarcomas) are exceedingly rare
          • Mesenchymal bladder tumors are rare; altogether account for < 5% of bladder tumors

        IMAGING

        • Leiomyoma

          • Paraganglioma

            • Neurofibroma

              • Hemangioma/Vascular Malformation

                • Sarcoma

                  DIFFERENTIAL DIAGNOSIS

                    Selected References

                    1. Beilan JA et al: Pheochromocytoma of the urinary bladder: a systematic review of the contemporary literature. BMC Urol. 13:22, 2013
                    2. Mouli S et al: Imaging features of common and uncommon bladder neoplasms. Radiol Clin North Am. 50(2):301-16, vi, 2012
                    3. Bullock R et al: Leiomyoma: an unusual bladder neoplasm. BMJ Case Rep. 2011, 2011
                    4. Wang H et al: Bladder paraganglioma in adults: MR appearance in four patients. Eur J Radiol. 80(3):e217-20, 2011
                    5. Tavora F et al: A series of vascular tumors and tumorlike lesions of the bladder. Am J Surg Pathol. 32(8):1213-9, 2008
                    6. Wong-You-Cheong J et al: Neoplasms of the urinary bladder: Radiologic-pathologic correlation. RadioGraphics 26: 553-580',2006
                    7. Purandare NC et al: Pheochromocytoma of the urinary bladder. J Ultrasound Med. 24(6):881-3, 2005
                    8. Zhou M et al: Paraganglioma of the urinary bladder: a lesion that may be misdiagnosed as urothelial carcinoma in transurethral resection specimens. Am J Surg Pathol. 28(1):94-100, 2004
                    9. Crecelius SA et al: Pheochromocytoma of the bladder in an adolescent: sonographic and MR imaging findings. AJR Am J Roentgenol. 165(1):101-3, 1995
                    10. Thrasher JB et al: Pheochromocytoma of urinary bladder: contemporary methods of diagnosis and treatment options. Urology. 41(5):435-9, 1993
                    11. Cronan JJ et al: Bladder pheochromocytoma. Color Doppler sonographic correlation. J Ultrasound Med. 11(9):493-5, 1992
                    12. Puvaneswary M et al: Phaechromocytoma of the bladder: ultrasound appearance. J Clin Ultrasound. 19(2):111-5, 1991
                    13. Das S et al: Primary vesical pheochromocytoma. Urology. 21(1):20-5, 1983
                    Related Anatomy
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                    Related Differential Diagnoses
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                    References
                    Tables

                    Tables

                    KEY FACTS

                    • Terminology

                      • Imaging

                        • Top Differential Diagnoses

                          TERMINOLOGY

                          • Definitions

                            • Primary neoplasms of urinary bladder derived from nonepithelial elements
                              • Leiomyoma, paraganglioma, fibroma, hemangioma, neurofibroma, plasmacytoma
                              • Malignant counterparts (´╗┐sarcomas) are exceedingly rare
                            • Mesenchymal bladder tumors are rare; altogether account for < 5% of bladder tumors

                          IMAGING

                          • Leiomyoma

                            • Paraganglioma

                              • Neurofibroma

                                • Hemangioma/Vascular Malformation

                                  • Sarcoma

                                    DIFFERENTIAL DIAGNOSIS

                                      Selected References

                                      1. Beilan JA et al: Pheochromocytoma of the urinary bladder: a systematic review of the contemporary literature. BMC Urol. 13:22, 2013
                                      2. Mouli S et al: Imaging features of common and uncommon bladder neoplasms. Radiol Clin North Am. 50(2):301-16, vi, 2012
                                      3. Bullock R et al: Leiomyoma: an unusual bladder neoplasm. BMJ Case Rep. 2011, 2011
                                      4. Wang H et al: Bladder paraganglioma in adults: MR appearance in four patients. Eur J Radiol. 80(3):e217-20, 2011
                                      5. Tavora F et al: A series of vascular tumors and tumorlike lesions of the bladder. Am J Surg Pathol. 32(8):1213-9, 2008
                                      6. Wong-You-Cheong J et al: Neoplasms of the urinary bladder: Radiologic-pathologic correlation. RadioGraphics 26: 553-580',2006
                                      7. Purandare NC et al: Pheochromocytoma of the urinary bladder. J Ultrasound Med. 24(6):881-3, 2005
                                      8. Zhou M et al: Paraganglioma of the urinary bladder: a lesion that may be misdiagnosed as urothelial carcinoma in transurethral resection specimens. Am J Surg Pathol. 28(1):94-100, 2004
                                      9. Crecelius SA et al: Pheochromocytoma of the bladder in an adolescent: sonographic and MR imaging findings. AJR Am J Roentgenol. 165(1):101-3, 1995
                                      10. Thrasher JB et al: Pheochromocytoma of urinary bladder: contemporary methods of diagnosis and treatment options. Urology. 41(5):435-9, 1993
                                      11. Cronan JJ et al: Bladder pheochromocytoma. Color Doppler sonographic correlation. J Ultrasound Med. 11(9):493-5, 1992
                                      12. Puvaneswary M et al: Phaechromocytoma of the bladder: ultrasound appearance. J Clin Ultrasound. 19(2):111-5, 1991
                                      13. Das S et al: Primary vesical pheochromocytoma. Urology. 21(1):20-5, 1983